Resilient or War caster on Trickery cleric?

I'm starting a new campaign and want to play a trickery cleric. I rolled [16, 15, 14, 14, 11, 8] and thought to assign them as such:

STR - 8

DEX - 14

CON - 15

INT - 11+1

WIS - 16+2

CHA - 14

With the idea to pick up Resilient - Con at lvl 4. However, I saw that War caster is a half-feat now, so maybe I should pick that instead at lvl 4 and switch the 15 and 16 around for CON and WIS? Though on the other hand, I wouldn't be surprised if there's a lot of poison saves since we're gonna play Out of the Abyss, which makes Resilient more useful.